Green Synthesis and Photocatalytic Dye Degradation Activity of CuO Nanoparticles

Abstract

The degradation of dyes is a difficult task due to their persistent and stable nature; therefore, developing materials with desirable properties to degrade dyes is an important area of research. In the present study, we propose a simple, one-pot mechanochemical approach to synthesize CuO nanoparticles (NPs) using the leaf extract of Seriphidium oliverianum, as a reducing and stabilizing agent. The CuO NPs were characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) and Fourier-transform infrared spectroscopy (FTIR). The photocatalytic activity of CuO NPs was monitored using ultraviolet-visible (UV-Vis) spectroscopy. The CuO NPs exhibited high potential for the degradation of water-soluble industrial dyes. The degradation rates for methyl green (MG) and methyl orange (MO) were 65.231% ± 0.242 and 65.078% ± 0.392, respectively. Bio-mechanochemically synthesized CuO NPs proved to be good candidates for efficiently removing dyes from water.

Beyond Conventional: Antibacterial, Antioxidant, and Photocatalytic Properties of Nanofibers Featuring Metal-Oxide-Modified Boron Nitride Nanoparticles

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Facile Synthesis of Band Gap-Tunable Kappa-Carrageenan-Mediated C,S-Doped TiO2 Nanoparticles for Enhanced Dye Degradation

“…Semiconducting nanoparticle (SNP)-based photocatalysis exhibits substantial potential for heterogeneous photocatalytic degradation-based AOPs owing to its simplicity, cost-effectiveness, nontoxic nature, impressive degradation efficiency, and outstanding stability . Numerous SNPs, including ZnO, CuO, TiO 2 , NiO, and SnO 2, have been harnessed as photocatalysts to eliminate organic dyes. − Among these, titanium dioxide (TiO 2 ) has garnered significant attention in photocatalysis . In 1972, Fujishima and Honda first suggested employing TiO 2 in photocatalysis, illustrating its capability to split water and generate hydrogen under light exposure .…”

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